Semiclassical description of Stern-Gerlach experiments
Abstract
The motion of neutral particles with magnetic moments in an inhomogeneous magnetic field is described in a semi-classical framework. The concept of Coherent Internal States is used in the formulation of the semiclassical approximation from the full quantum mechanical expression. The classical trajectories are defined only for certain spin state, that satusfy the conditions for being Coherent Internal State. The raalibility of Stern-Gerlach experiments to measure spin projectons is assessed in this framework.
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